Ⅰ.单项填空
1. College students should gain some experience of the outside world ______ they can get used to society as soon as they graduate.
A. even if B. in case
C. so that D. as long as
2. As long as we are devoted to spreading scientific knowledge among the masses, all the strange beliefs are ______ to go out of our life.
A. necessary B. important
C. difficult D. bound
3. His parents firmly ______ to his going into the forest by himself.
A. reject B. object
C. forbid D. centre
4. If you keep doing morning exercises every day, you will be healthy ______.
A. by and by B. again and again
C. and so on D. up and down
5. My son is going to abandon himself to the Internet this summer, but I would rather he ______ some paper books.
A. has read B. read